30 PPH Fuel Injectors - 8-Pack

The HOLLEY 30 PPH Fuel Injectors 8-Pack (model 522-308) is a set of eight high-impedance EV1/Jetronic fuel injectors rated at 30 pounds per hour, engineered for precise fuel delivery in gas-powered engine applications. These universal injectors are designed to replace worn or undersized factory units in street engines, hot rods, and custom fuel injection builds where calibrated fuel metering is critical to engine performance and drivability.

The 30 lb/hr flow rate positions these injectors in the mid-range for naturally aspirated engines, providing adequate fuel volume for engines in the 200–350 horsepower range without running lean at cruise or load. The high-impedance design means they operate at the standard 12–14 volts supplied by most vehicles' fuel injection modules, eliminating the need for ballast resistors or external control modules. The EV1/Jetronic connector is one of the most common fuel injector interfaces, ensuring broad compatibility across import and domestic platforms from the 1980s through early 2000s. Each injector features a precision atomizing nozzle and stainless internal components, which resist deposits and fuel breakdown over extended storage or use.

This eight-pack is ideal for V8 engines and other eight-cylinder configurations running a full sequential or batch-fire injection system. Buyers restoring multi-carb cars to fuel injection, tuning existing EFI engines, or upgrading injector capacity will find these HOLLEY units a straightforward replacement option. The set allows complete renewal of an engine's fuel delivery system in a single purchase, ensuring matched injector performance across all cylinders and consistent idle quality, throttle response, and load calibration once properly sized for the target displacement and power target.